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3b7a962d SM |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
88b9d363 | 3 | Copyright 2020-2022 Free Software Foundation, Inc. |
3b7a962d SM |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #include <unistd.h> | |
19 | #include <stdio.h> | |
20 | #include <stdlib.h> | |
21 | #include <string.h> | |
22 | #include <pthread.h> | |
23 | ||
24 | #include "../lib/my-syscalls.h" | |
25 | ||
26 | #if (!defined(LEADER_DOES_EXEC) && !defined(OTHER_DOES_EXEC) \ | |
27 | || defined(LEADER_DOES_EXEC) && defined(OTHER_DOES_EXEC)) | |
28 | # error "Exactly one of LEADER_DOES_EXEC and OTHER_DOES_EXEC must be defined." | |
29 | #endif | |
30 | ||
31 | ||
32 | static char *argv0; | |
33 | static pthread_barrier_t barrier; | |
34 | ||
35 | static void | |
36 | do_the_exec (void) | |
37 | { | |
38 | char *execd_path = (char *) malloc (strlen (argv0) + sizeof ("-execd")); | |
39 | sprintf (execd_path, "%s-execd", argv0); | |
40 | char *argv[] = { execd_path, NULL }; | |
41 | ||
42 | printf ("Exec-ing %s\n", execd_path); | |
43 | ||
44 | extern char **environ; | |
45 | my_execve (execd_path, argv, environ); | |
46 | ||
47 | printf ("Exec failed :(\n"); | |
48 | abort (); | |
49 | } | |
50 | ||
51 | static void * | |
52 | thread_func (void *arg) | |
53 | { | |
54 | pthread_barrier_wait (&barrier); | |
55 | #ifdef OTHER_DOES_EXEC | |
56 | printf ("Other going in exec.\n"); | |
57 | do_the_exec (); | |
58 | #endif | |
59 | ||
60 | /* Just make sure the thread does not exit when the leader does the exec. */ | |
61 | pthread_barrier_wait (&barrier); | |
62 | ||
63 | return NULL; | |
64 | } | |
65 | ||
66 | int | |
67 | main (int argc, char *argv[]) | |
68 | { | |
69 | argv0 = argv[0]; | |
70 | ||
71 | int ret = pthread_barrier_init (&barrier, NULL, 2); | |
72 | if (ret != 0) | |
73 | abort (); | |
74 | ||
75 | pthread_t thread; | |
76 | ret = pthread_create (&thread, NULL, thread_func, argv[0]); | |
77 | if (ret != 0) | |
78 | abort (); | |
79 | ||
80 | pthread_barrier_wait (&barrier); | |
81 | ||
82 | #ifdef LEADER_DOES_EXEC | |
83 | printf ("Leader going in exec.\n"); | |
84 | do_the_exec (); | |
85 | #endif | |
86 | ||
87 | pthread_join (thread, NULL); | |
88 | ||
89 | return 0; | |
90 | } |